RE: Gargantuavis neck vertebra

[Anthony Docimo <keenir@hotmail.com>]

> Subject: Re: Gargantuavis neck vertebra
> 
> Uhh...I live in Michigan, and not too long ago, at least 2 species of 
> proboscideans co-existed in the same places (mastodon and mammoth). that was 
> about 12000 years ago.

 

and before then, you also had http://en.wikipedia.org/wiki/Platybelodon

 

 

Africa and Asia also enjoyed the company of 
http://en.wikipedia.org/wiki/Deinotheriidae & 
http://en.wikipedia.org/wiki/Stegodontidae in addition to the modern groups of 
elephants.

 

So the 'only one species of proboscidean in any region' is questionable.

 

 

 

> 
> ----- Original Message -----
> From: GSP1954@aol.com
> To: dinosaur@usc.edu
> Sent: Thursday, June 14, 2012 9:11:27 AM
> Subject: Re: Gargantuavis neck vertebra
> 
> My slip up. What I meant is that of late there has been only one species of 
> proboscidean in any region, so it might have been true of sauropods in one 
> formation of limited lateral extent like the Nemegt. 
> 
> On the other hand I am not sure how much time it took to deposit the 
> Nemegt, and what level/s the only good published titanosaur skull and 
> titanosaur 
> skeleton come from. 
> 
> And just one species of ostrich lives over a huge area of Africa, so it is 
> possible that the Late Cret big bird remains are just one species. Should 
> not be formalized by assignment though. 
> 
> GSPaul
> 
> 
> In a message dated 6/14/12 1:33:15 AM, david.marjanovic@gmx.at writes:
> 
> << > Giant animals tend to be less diverse species wise, and the Nemegt
> 
> > sauropod remains were from the same formation, so the probablity that
> 
> > the Nemegt titanosaurs are from one species is a higher than for much
> 
> > smaller bird remains from differing sediments. As has been noted,
> 
> > there were 9 moa species just recently on wee islands, one
> 
> > proboscidean each in Africa and Asia.
> 
> 
> How many proboscidean species you recognize in Africa depends -- 
> 
> surprise, surprise -- on your species concept. Many people nowadays 
> 
> distinguish the savanna elephant (*Loxodonta africana*) from the forest 
> 
> elephant (*Loxodonta cyclotis*).
> 
> >>
> 
> </HTML>